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During the independent research 90 women were chosen to measure their weight. The mean value of weight is 66 kg and it is known from the previous experience that the weight is normally distributed with o = 10 kg. a) Find a 95% two-sided confidence interval on the mean weight. Round your answers to two decimal places (e.g. 98.76). i eTextbook and Media i b) Find a 90% two-sided confidence interval on the mean weight. Round your answers to two decimal places (e.g. 98.76). e Textbook and Media SUM c) Which interval is wider? i sus O 90% two-sided confidence interval is wider than 95% two-sided confidence interval. O 95% two-sided confidence interval is wider than 90% two-sided confidence interval.

During the independent research 90 women were chosen to measure their weight. The mean value of weight is 66 kg and it is known from the previous experience that the weight is normally distributed with o = 10 kg. a) Find a 95% two-sided confidence interval on the mean weight. Round your answers to two decimal places (e.g. 98.76). i eTextbook and Media i b) Find a 90% two-sided confidence interval on the mean weight. Round your answers to two decimal places (e.g. 98.76). e Textbook and Media SUM c) Which interval is wider? i sus O 90% two-sided confidence interval is wider than 95% two-sided confidence interval. O 95% two-sided confidence interval is wider than 90% two-sided confidence interval.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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During the independent research 90 women were chosen to measure their weight. The mean value of weight is 66 kg and it is known from the previous experience that the weight is normally distributed with o = 10 kg. a) Find a 95% two-sided confidence interval on the mean weight. Round your answers to two decimal places (e.g. 98.76). i eTextbook and Media b) Find a 90% two-sided confidence interval on the mean weight. Round your answers to two decimal places (e.g. 98.76). i eTextbook and Media i c) Which interval is wider? ≤u≤ i O 90% two-sided confidence interval is wider than 95% two-sided confidence interval. O 95% two-sided confidence interval is wider than 90% two-sided confidence interval.
Transcribed Image Text:During the independent research 90 women were chosen to measure their weight. The mean value of weight is 66 kg and it is known from the previous experience that the weight is normally distributed with o = 10 kg. a) Find a 95% two-sided confidence interval on the mean weight. Round your answers to two decimal places (e.g. 98.76). i eTextbook and Media b) Find a 90% two-sided confidence interval on the mean weight. Round your answers to two decimal places (e.g. 98.76). i eTextbook and Media i c) Which interval is wider? ≤u≤ i O 90% two-sided confidence interval is wider than 95% two-sided confidence interval. O 95% two-sided confidence interval is wider than 90% two-sided confidence interval.
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